Sargassum seaweed taking over beaches in Florida, Mexico and the Caribbean

Sargassum, a type of seaweed, is critical for marine life but is growing aggressively closer to shores. Its increasing presence is creating an unpleasant smell for beachgoers in Florida, Mexico and the Caribbean. NBC News’ Sam Brock shares more details on what’s driving the build up. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: Visit : Find NBC News on Facebook: Follow NBC News on Twitter: Get more of NBC News delivered to your inbox: #NBCNews #Seaweed #ClimateChange